Flat push electric step

Abstract

The utility model belongs to electric step technology field especially for flat push electric step, including frame assembly, pedal face subassembly, gear arm subassembly and motor assembly, still include: the utility model, through the side rail of frame assembly is located in both sides, pedal face width size reduces, overall structure is compact, weight reduces, satisfies miniaturization demand, and high low staggered installation is adopted to the sliding wheel, front end and rail surface upper surface contact, rear end and rail surface lower surface contact, effectively reduce the up and down swing of pedal operation time, and the cross recess and rectangular groove of sliding wheel can automatically discharge silt, the rubber piece of wing plate subassembly seals the frame when recycling, avoids the invasion of foreign matter, prolongs the life of component, finally, through the magnetic switch and magnet induction realize accurate positioning, set up buffer piece and end cap simultaneously, double protection operation safety, simultaneously, manual return handle is installed in the bottom plate outside, can fast manual recovery pedal when motor trouble, improves emergency convenience.

Description

Technical Field

[0001] This utility model relates to the field of electric stepper technology, specifically to a flat-push electric stepper. Background Technology

[0002] Electric running boards are automatic retractable automotive assistance devices, primarily designed to facilitate getting in and out of vehicles with high ground clearance. The retraction mechanism is triggered by a door opening / closing signal; the board extends when the door is opened and automatically retracts under the vehicle when the door is closed. Core components include an aluminum alloy running board, a motor drive system, a linkage telescopic mechanism, and an anti-slip running board surface.

[0003] Electric push-to-step steps are widely used in vehicle entry and exit auxiliary components. However, existing electric push-to-step steps are limited by their structure, resulting in long tread widths and heavy weights, making it difficult to meet the needs of some customers for miniaturized and lightweight steps. Furthermore, they are susceptible to mud and sand interference and have poor stability during operation.

[0004] Therefore, we proposed a flat-push electric stepper to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, this utility model provides a flat-push electric stepper, which solves the problems mentioned in the background technology, such as the large width and weight of the flat-push electric stepper, which cannot meet the needs of some customers, and the fact that the operation is easily affected by mud and sand and has poor stability.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] The electric push-button step includes a frame assembly, a pedal surface assembly, a gear arm assembly, and a motor assembly, and also includes:

[0010] The frame assembly includes a left side rail, a right side rail, a top plate, a bottom plate, and an end cap. The left side rail and the right side rail are located on the left and right sides of the frame assembly, respectively. The end cap is installed at the front end of the side rail. The top plate and the bottom plate are fixed to the left side rail and the right side rail by fasteners. The top plate and the bottom plate are installed on the right side rail and the left side rail by screws.

[0011] The top plate has an upward-curved front edge and a downward-curved rear edge; a buffer is installed on the downward-curved rear edge of the top plate, and the buffer is fixed by two screws for mechanical limiting when the pedal is retracted; a sealing ring is also installed at the rear end of the top plate, and a wire harness is installed inside the sealing ring.

[0012] The pedal surface assembly includes a front pedal surface, a rear pedal surface, a left side body, a right side body, and a sliding wheel. The front pedal surface and the rear pedal surface are installed on the left side body and the right side body by fasteners. The sliding wheel is installed on the left side body and the right side body by a support frame, and the sliding wheel cooperates with the left side rail and the right side rail.

[0013] The gear arm assembly includes a gear arm and a push rod. One end of the gear arm is connected to the top plate, and the other end is connected to the pedal surface assembly via the push rod.

[0014] The motor assembly includes a motor base and a motor component. The motor base is fixed to the top plate, and the motor component is connected to the gear arm assembly for driving the pedal surface assembly to extend or retract. The lower end of the motor base is provided with a motor assembly communication hole and is connected to the motor component.

[0015] Furthermore, a bottom reinforcing strip is installed at the front end of the base plate;

[0016] The top plate has mounting holes for motor components and gear arms. A component that mates with the gear arm assembly is fixed in the gear arm mounting hole by fasteners. The mounting holes for motor components are used to fix the motor components.

[0017] Furthermore, a pedal side cover is installed at the end of the rear pedal surface, and the pedal side cover is fastened to the left side body and the right side body by fasteners. A wing plate assembly is installed on the rear pedal surface.

[0018] The wing plate assembly includes an L-shaped bending component, a rubber component, and a pressure plate. One side of the L-shaped bending component is fixed to the bottom of the rear pedal surface by fasteners, and the other side is fixed to the pressure plate by rivets. When the pedal surface assembly is retracted, the rubber component contacts and seals with the bottom plate.

[0019] Furthermore, there are four sets of sliding wheels that are symmetrical from left to right, and bearing components are installed inside the sliding wheels. The mounting holes of the sliding wheels are located at different heights, with the mounting holes of the front sliding wheels close to the pedal surface and the mounting holes of the rear sliding wheels far away from the pedal surface. The front sliding wheels are in contact with the upper surfaces of the left and right rails, and the rear sliding wheels are in contact with the lower surfaces of the left and right rails.

[0020] Furthermore, a cross-shaped groove is formed on the protruding end face of the sliding wheel near the side body; the center part of the sliding wheel is provided with a groove that matches the left and right rails, and rectangular grooves are provided on the left and right sides of the groove respectively.

[0021] Furthermore, a component that mates with a push rod hole is mounted on the front pedal surface via fasteners, the push rod hole being located at the end of the push rod.

[0022] Furthermore, the gear arm assembly also includes a magnet, a magnet base, and a connecting mechanism. The magnet is installed inside the magnet base, and the magnet base is installed on the gear arm. The gear arm and the push rod are connected and fixed together by the connecting mechanism.

[0023] The gear arm assembly also includes a gasket and a washer, which are installed in the center hole of the gear arm and mate with a corresponding component on the top plate.

[0024] Furthermore, the motor assembly also includes a retraction magnetic switch and an extension magnetic switch, which are respectively installed on both sides of the motor base and used to sense the magnet on the gear arm assembly to control the extension or retraction of the pedal; the motor base has a gear mounting hole, and two sets of meshing gear arm assemblies are installed in the gear mounting hole, one of which meshes with the gear of the motor assembly.

[0025] Furthermore, the motor assembly also includes a motor bracket, a motor torsion shaft, a first slide rail, and a second slide rail. The motor assembly is mounted on the motor bracket, and the motor torsion shaft passes through the motor assembly and cooperates with the first and second slide rails, so that the motor assembly can rotate along the slide rails to achieve the meshing or disengagement of the motor gear and the gear arm assembly.

[0026] Furthermore, the motor assembly also includes a manual return handle, a reset transmission component, a reset linkage shaft, a first tension spring post, a second tension spring post, and a tension spring component. The manual return handle is installed on the outside of the base plate and connected to the reset transmission component. The reset transmission component cooperates with the motor base through the reset linkage shaft. A reset linkage assembly is sleeved on the outer surface of the linkage shaft. One end of the tension spring component is fixed to the first tension spring post, and the other end is fixed to the second tension spring post. The first tension spring post is located on the relevant components of the reset linkage, and the second tension spring post is located on the motor base. When the manual return handle is turned, the motor gear separates from the gear arm assembly, and the pedal surface assembly can be manually retracted.

[0027] (III) Beneficial Effects

[0028] Compared with the prior art, the present invention provides a flat-push electric stepper, which has the following beneficial effects:

[0029] This utility model features a frame assembly with side rails on both sides, reducing the width of the pedal surface, resulting in a compact overall structure and reduced weight, meeting miniaturization requirements. The sliding wheels are installed with staggered heights, with the front end contacting the upper surface of the rail and the rear end contacting the lower surface, effectively reducing the vertical sway of the pedal during operation. Furthermore, the cross grooves and rectangular slots on the sliding wheels automatically discharge mud and sand. The rubber parts of the wing plate assembly seal the frame during retraction, preventing foreign object intrusion and extending component life. Finally, precise positioning is achieved through a magnetic switch and magnetic induction, while buffer components and end caps provide double protection for operational safety. Additionally, a manual return handle is installed on the outside of the base plate, allowing for quick manual retraction of the pedal in case of motor failure, enhancing emergency convenience. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the extension and closing structure of the electric push-to-close step of this utility model;

[0031] Figure 2 This is a top view of the frame component of this utility model;

[0032] Figure 3 This is a left-side view of the frame component of this utility model;

[0033] Figure 4 This utility model Figure 2 Enlarged view of a portion of point B in the middle;

[0034] Figure 5 This is a top view of the pedal surface assembly of this utility model;

[0035] Figure 6 This utility model Figure 5 Enlarged view of a portion of point A in the middle;

[0036] Figure 7 This is a schematic diagram of the cross-section of the sliding wheel of this utility model;

[0037] Figure 8 This is a top view of the gear arm assembly of this utility model;

[0038] Figure 9 This is a bottom view of the gear arm assembly of this utility model;

[0039] Figure 10 This is a top view of the motor assembly of this utility model.

[0040] In the diagram: 1. Frame assembly; 101. Top plate; 102. End cap; 103. Bottom reinforcing strip; 104. Right side rail; 105. Left side rail; 106. Base plate; 107. Screw 1; 108. Sealing ring; 109. Buffer component; 110. Screw 2; 111. Motor assembly mounting hole; 112. Gear arm mounting hole; 2. Pedal surface assembly; 201. Front pedal surface; 202. Rear pedal surface; 203. Left side body; 204. Right side body; 205. Pedal side cover; 206. Wing plate assembly; 207. Sliding wheel; 208. Support frame; 209. Bearing component; 3. Gear arm assembly; 301. Gasket; 302. Washer component; 303. Gear 304. Wheel arm; 305. Magnet base; 306. Magnet component; 307. Push rod component; 308. Connecting mechanism; 309. Push rod hole component; 400. Motor assembly; 401. Motor base; 402. Motor component; 403. Motor assembly connecting hole; 404. Gear mounting hole; 405. Retraction magnetic switch; 406. Extension magnetic switch; 407. Motor bracket; 408. Motor torsion shaft; 409. Slide part one; 410. Slide part two; 411. Manual return handle; 412. Reset transmission component; 413. Reset connecting rod shaft; 414. Tension spring post one; 415. Slide part two; 416. Reset connecting rod assembly; 417. Tension spring component; 418. Tension spring post two. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Example

[0043] like Figure 1-10 As shown, one embodiment of the present invention provides a push-pull electric stepper, which includes a frame assembly 1, a pedal surface assembly 2, a gear arm assembly 3, and a motor assembly 4, and further includes:

[0044] The frame assembly 1 includes a left side rail 105, a right side rail 104, a top plate 101, a bottom plate 106, and an end cap 102. The left side rail 105 and the right side rail 104 are located on the left and right sides of the frame assembly 1, respectively. The end cap 102 is installed at the front end of the side rail. The top plate 101 and the bottom plate 106 are fixed to the left side rail 105 and the right side rail 104 by fasteners. The top plate 101 and the bottom plate 106 are installed on the right side rail 104 and the left side rail 105 by screws 107.

[0045] The left side rail 105 and the right side rail 104 are arranged in parallel on the left and right sides of the frame assembly 1 to form the sliding track of the pedal surface assembly 2. The end cap 102 is fixedly installed on the front end of the left side rail 105 and the right side rail 104, serving as both a mechanical limit when the pedal is extended and a dustproof rail guard. The top plate 101 and the bottom plate 106 are fixed to the upper and lower sides of the left side rail 105 and the right side rail 104 by screws 107 to form a closed structure of the frame.

[0046] The top plate 101 has an upward-curved front edge and a downward-curved rear edge. A buffer 109 is installed on the downward-curved rear edge of the top plate 101. The upward-curved front edge of the top plate 101 enhances structural strength, while the downward-curved rear edge is fixed to the buffer 109 by screw 110. This buffer serves as a mechanical limit when the pedal is retracted, preventing rigid collision between the pedal and the frame. The buffer 109 is also fixed by screw 110 for mechanical limit during pedal retraction. A sealing ring 108 is also installed at the rear of the top plate 101, and a wiring harness is installed inside the sealing ring 108 to achieve sealed protection for the wiring harness. A bottom reinforcing strip 103 is installed at the front of the bottom plate 106 to enhance the load-bearing capacity of the bottom plate 106.

[0047] The top plate 101 has a motor assembly mounting hole 111 and a gear arm mounting hole 112. A component that mates with the gear arm assembly 3 is fixed in the gear arm mounting hole 112 by fasteners. The motor assembly mounting hole 111 is used to fix the motor assembly 4. The top plate 101 has a motor assembly mounting hole 111 and a gear arm mounting hole 112: the motor assembly mounting hole 111 is used to fix the motor assembly 4, and the gear arm mounting hole 112 is used to fix a component that mates with the gear arm assembly 3 by fasteners, thereby realizing the connection between the gear arm assembly 3 and the top plate 101.

[0048] The pedal surface assembly 2 is the core component that supports the user's footing, including a front pedal surface 201, a rear pedal surface 202, a left side body 203, a right side body 204, and a sliding wheel 207. The front pedal surface 201 and the rear pedal surface 202 are installed on the left side body 203 and the right side body 204 by fasteners. The front pedal surface 201 and the rear pedal surface 202 are fixed on top of the left side body 203 and the right side body 204 by fasteners to form a complete footing surface. The sliding wheel 207 is installed on the left side body 203 and the right side body 204 by a support frame 208, and the sliding wheel 207 cooperates with the left rail 105 and the right rail 104.

[0049] A pedal side cover 205 is installed at the end of the rear pedal surface 202. The pedal side cover 205 is fastened to the left side body 203 and the right side body 204 by fasteners. A wing plate assembly 206 is installed on the rear pedal surface 202. The pedal side cover 205 is installed at the end of the rear pedal surface 202. The pedal side cover 205 is fastened to the left side body 203 and the right side body 204 by fasteners such as screws, which serves as end protection.

[0050] The wing plate assembly 206 includes an L-shaped bent part, a rubber part, and a pressure plate. One side of the L-shaped bent part is fixed to the bottom of the rear pedal surface 202 by fasteners, and the other side is fixed to the pressure plate by rivets. When the pedal surface assembly 2 is retracted, the rubber part contacts and seals with the base plate 106. The wing plate assembly 206 is installed on the rear pedal surface 202. The wing plate assembly 206 consists of an L-shaped bent part, a rubber part, and a pressure plate. One side of the L-shaped bent part is fixed to the bottom of the rear pedal surface 202 by fasteners, and the other side cooperates with the pressure plate and is fixed to the rubber part by rivets. When the pedal surface assembly 2 is retracted to the initial position, the rubber part is in close contact with the base plate 106 to form a sealing structure and prevent foreign objects such as mud and sand from entering the frame.

[0051] There are four sets of sliding wheels 207 arranged symmetrically on both sides. Each sliding wheel 207 has a bearing 209 installed inside. The sliding wheels 207 are mounted on the outer sides of the left side body 203 and the right side body 204 via a support frame 208. The bearing 209 inside the sliding wheels 207 reduces sliding friction and improves smooth operation. The mounting holes of the sliding wheels 207 are located at different heights, with the front sliding wheel mounting hole closer to the pedal surface and the rear sliding wheel mounting hole further away. The front sliding wheel 207 contacts the upper surfaces of the left side rail 105 and the right side rail 104, while the rear sliding wheel 207 contacts the lower surfaces of the left side rail 105 and the right side rail 104. This design ensures that when the pedal assembly 2 is running, the front sliding wheel 207 contacts the upper surface of the left side rail 105. 05. The upper surface of the right rail 104 contacts the lower surface of the left rail 105 and the right rail 104, effectively reducing the vertical swaying of the pedal during operation and improving stability; a cross groove is opened on the protruding end face of the sliding wheel 207 near the side body; the center part of the sliding wheel 207 is provided with a groove matching the left rail 105 and the right rail 104, and rectangular grooves are provided on the left and right sides of the groove; when the sliding wheel 207 rotates, the mud and sand that have entered between the sliding wheel 207 and the side body can be discharged through the cross groove; the center part of the sliding wheel 207 is provided with a groove matching the left rail 105 and the right rail 104, and rectangular grooves are provided on the left and right sides of the groove to discharge the mud and sand in the groove, ensuring that the sliding wheel 207 runs smoothly in the track;

[0052] The gear arm assembly 3 includes a gear arm 303 and a push rod 306. One end of the gear arm 303 is connected to the top plate 101, and the other end is connected to the pedal surface assembly 2 via the push rod 306. The gear arm assembly 3 is the transmission core, used to connect the frame assembly 1 and the pedal surface assembly 2. A component that mates with the push rod hole 308 is installed on the front pedal surface 201 via fasteners. The push rod hole 308 is located at the end of the push rod 306. The components enable the connection between the push rod 306 and the pedal surface assembly 2. The gear arm assembly 3 also includes a washer 301 and a washer 302. The washer 301 and the washer 302 are installed at the center hole of the gear arm 303, and the washer 301 cooperates with the corresponding component on the top plate 101. The washer 301 and the washer 302 are installed at the center hole of the gear arm 303, wherein the washer 301 cooperates with the corresponding component on the top plate 101 to achieve a stable connection between the gear arm 303 and the top plate 101.

[0053] The gear arm assembly 3 also includes a magnet 305, a magnet base 304, and a connecting mechanism 307. The magnet 305 is installed inside the magnet base 304, and the magnet base 304 is installed on the gear arm 303. The gear arm 303 and the push rod 306 are connected and fixed through the connecting mechanism 307. The magnet 305 is installed inside the magnet base 304, and the magnet base 304 is fixed on the gear arm 303. It is used to cooperate with the magnetic switch of the motor assembly 4 to realize the signal sensing of pedal extension / retraction. Then, the gear arm 303 and the push rod 306 are fixedly connected through the connecting mechanism 307 to ensure reliable power transmission.

[0054] The motor assembly 4 includes a motor base 401 and a motor component 402. The motor base 401 is fixed to the top plate 101, and the motor component 402 is connected to the gear arm assembly 3 for driving the pedal surface assembly 2 to extend or retract. The motor assembly 4 is a power source for driving the extension and retraction of the pedal surface assembly 2. The motor base 401 is fixed to the motor assembly mounting hole 111 of the top plate 101 by fasteners, serving as the mounting base for the motor component 402 and related components.

[0055] Motor assembly 4 also includes a retraction magnetic switch 405 and an extension magnetic switch 406. The retraction magnetic switch 405 and the extension magnetic switch 406 are respectively mounted on both sides of the motor base 401, used to sense the magnet 305 on the gear arm assembly 3 to control the extension or retraction of the pedal. The motor base 401 has a gear mounting hole 404, within which two sets of meshing gear arm assemblies 3 are installed. One set of gear arm assemblies 3 meshes with the gear of motor component 402. The motor base 401 also has a gear mounting hole 404, within which two sets of meshing gear arm assemblies 3 are installed. One set of gear arm assemblies 3 meshes with the output gear of motor component 402. Through the motor gear... The rotational drive synchronizes the rotation of two sets of gear arm assemblies 3, which in turn pushes the pedal surface assembly 2 to extend or retract via the push rod 306. A retraction magnetic switch 405 and an extension magnetic switch 406 are respectively installed on both sides of the motor base 401. When the gear arm assembly 3 rotates with the motor, the magnetic component 305 approaches or moves away from the magnetic switch, triggering a switch signal to control the motor component 402 to stop rotating, achieving precise positioning of the pedal extension / retraction. The motor component 402 is mounted on the motor bracket 407, and the motor torsion shaft 408 passes through the motor component 402 and engages with the first sliding groove 409 and the second sliding groove 410 of the motor bracket 407. The motor component 402 can rotate along the sliding groove, enabling the motor gears to mesh or disengage from the gear arm assembly 3.

[0056] Motor assembly 4 also includes a motor bracket 407, a motor torsion shaft 408, a first slide rail 409, and a second slide rail 410. Motor component 402 is mounted on the motor bracket 407. The motor torsion shaft 408 passes through motor component 402 and cooperates with the first slide rail 409 and the second slide rail 410, allowing motor component 402 to rotate along the slide rail to achieve engagement or disengagement of the motor gear and gear arm assembly 3. Motor assembly 4 also includes a manual return handle 411, a reset transmission component 412, a reset connecting rod shaft 413, a first tension spring post 414, a second tension spring post 418, and a tension spring component 417. The manual return handle 411 is mounted on the outside of the base plate 106 and connected to the reset transmission component 412. The reset transmission component 412 cooperates with the motor base 401 through the reset connecting rod shaft 413, which can limit the position of the reset connecting rod assembly 416, preventing offset and wobbling of the reset connecting rod assembly. The tension spring component... One end of spring 417 is fixed to spring post 414 and the other end is fixed to spring post 418. Spring post 414 is located on the relevant components of the reset linkage, and spring post 418 is located on the motor base 401. When the manual return handle 411 is turned, the motor gear separates from the gear arm assembly 3, and the pedal surface assembly 2 can be manually retracted. The manual return handle 411 is installed on the outside of the base plate 106 and connected to the reset transmission component 412. The reset transmission component 412 cooperates with the motor base 401 through the reset linkage shaft 413. One end of spring 417 is fixed to spring post 414 and the other end is fixed to spring post 418. The tension of spring 417 locks the reset linkage and the motor bracket 407, ensuring that the motor gear and the gear arm assembly 3 mesh normally. The sliding groove component 15 can limit spring post 414 and prevent spring post 414 from shifting or shaking.

[0057] Furthermore, when the pedal needs to be manually retracted, the manual return handle 411 is moved, the reset transmission component 412 rotates around the reset linkage shaft 413, driving the reset linkage and motor bracket 407 to move, causing the motor component 402 to rotate along the slide groove, and the motor gear and gear arm assembly 3 to separate. At this time, the pedal surface assembly 2 can be manually pushed back to the initial position.

[0058] When in use, when the pedal needs to be manually retracted, the manual return handle 411 is moved, the reset transmission component 412 rotates around the reset linkage shaft 413, which drives the reset linkage and motor bracket 407 to move, causing the motor component 402 to rotate along the slide groove, and the motor gear and gear arm assembly 3 to separate. At this time, the pedal surface assembly 2 can be manually pushed to retract to the initial position.

[0059] Meanwhile, the pedal surface assembly 2 is assembled as follows: the front pedal surface 201 and the rear pedal surface 202 are fixed to the left side body 203 and the right side body 204; the rear pedal surface 202 is equipped with the pedal side cover 205 and the wing plate assembly 206; the sliding wheel 207 is installed on the side body through the support frame 208 to ensure that the front and rear wheels are misaligned.

[0060] Furthermore, when assembling the gear arm assembly 3: the gear arm 303 is fitted with a gasket 301 and a washer 302, and connected to the top plate 101 through the gear arm mounting hole 112; the magnet seat 304 and the magnet 305 are fixed to the gear arm 303; the gear arm 303 and the push rod 306 are connected through a connecting mechanism 307, and the push rod hole 308 engages with the support sleeve of the front pedal surface 201; furthermore, the motor base 401 is fixed to the top plate 101, and two sets of meshing gear arm assemblies 3 are installed in the gear mounting hole 404, with the right gear arm meshing with the motor gear; a retraction magnetic switch 405, an extension magnetic switch 406, and a manual return mechanism are installed, and the tension spring 417 connects the tension spring post 1 414 and the tension spring post 2 418;

[0061] When extension is required, motor 402 can be started, the motor gear drives the two sets of gear arm assemblies 3 to rotate, and push rod 306 pushes pedal surface assembly 2 to slide outward along left rail 105 and right rail 104; the front end of sliding wheel 207 rolls along the upper surface of the rail surface and the rear end rolls along the lower surface of the rail surface, and the cross groove and rectangular groove discharge mud and sand; when magnet 305 approaches extension magnetic switch 406, motor stops and pedal extends to the position; when retraction is required, motor 402 can be reversed, and gear arm assembly 3 drives pedal surface assembly 2 to slide inward; when retracted to the position, magnet 305 approaches retraction magnetic switch 405, motor stops, buffer 109 is limited, and rubber part of wing plate assembly 206 seals with base plate 106; finally, manual return can also be performed by pulling manual return handle 411, reset transmission 412 drives motor bracket 407 to rotate, motor gear separates from gear arm, and pedal is manually pushed back to the initial position.

[0062] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A push-pull electric stepper, comprising a frame assembly (1), a pedal surface assembly (2), a gear arm assembly (3), and a motor assembly (4), characterized in that, Also includes: The frame assembly (1) includes a left side rail (105), a right side rail (104), a top plate (101), a bottom plate (106), and an end cap (102). The left side rail (105) and the right side rail (104) are located on the left and right sides of the frame assembly (1), respectively. The end cap (102) is installed on the front end of the side rail. The top plate (101) and the bottom plate (106) are fixed to the left side rail (105) and the right side rail (104) by fasteners. The top plate (101) and the bottom plate (106) are installed on the right side rail (104) and the left side rail (105) by screws (107). The top plate (101) has an upward-curved front edge and a downward-curved rear edge; a buffer (109) is installed on the downward-curved rear edge of the top plate (101), and the buffer (109) is fixed by screw two (110) for mechanical limiting when the pedal is retracted; a sealing ring (108) is also installed at the rear end of the top plate (101), and a wire harness is installed inside the sealing ring (108); The pedal surface assembly (2) includes a front pedal surface (201), a rear pedal surface (202), a left side body (203), a right side body (204), and a sliding wheel (207). The front pedal surface (201) and the rear pedal surface (202) are installed on the left side body (203) and the right side body (204) by fasteners. The sliding wheel (207) is installed on the left side body (203) and the right side body (204) by a support frame (208), and the sliding wheel (207) cooperates with the left rail (105) and the right rail (104). The gear arm assembly (3) includes a gear arm (303) and a push rod (306). One end of the gear arm (303) is connected to the top plate (101), and the other end is connected to the pedal surface assembly (2) through the push rod (306). The motor assembly (4) includes a motor base (401) and a motor component (402). The motor base (401) is fixed to the top plate (101). The motor component (402) is connected to the gear arm assembly (3) for driving the pedal surface assembly (2) to extend or retract.

2. The electric push-to-step according to claim 1, characterized in that: A bottom reinforcing strip (103) is installed at the front end of the base plate (106); The top plate (101) has a motor assembly mounting hole (111) and a gear arm mounting hole (112). A component that mates with the gear arm assembly (3) is fixed in the gear arm mounting hole (112) by fasteners. The motor assembly mounting hole (111) is used to fix the motor assembly (4).

3. The electric push-button step according to claim 1, characterized in that: A pedal side cover (205) is installed at the end of the rear pedal surface (202). The pedal side cover (205) is fastened to the left side body (203) and the right side body (204) by fasteners. A wing plate assembly (206) is installed on the rear pedal surface (202). The wing plate assembly (206) includes an L-shaped bending part, a rubber part and a pressure plate. One side of the L-shaped bending part is fixed to the bottom of the rear pedal surface (202) by fasteners, and the other side is fixed to the pressure plate by rivets. When the pedal surface assembly (2) is retracted, the rubber part contacts and seals with the base plate (106).

4. The electric push-pull step according to claim 3, characterized in that: There are four sets of sliding wheels (207) that are symmetrical from left to right. Each sliding wheel (207) has a bearing (209) installed inside. The mounting holes of the sliding wheels (207) are located at different heights. The mounting holes of the front sliding wheels are close to the pedal surface, while the mounting holes of the rear sliding wheels are far away from the pedal surface. The front sliding wheel (207) contacts the upper surface of the left rail (105) and the right rail (104), while the rear sliding wheel (207) contacts the lower surface of the left rail (105) and the right rail (104).

5. The electric push-to-step according to claim 4, characterized in that: The sliding wheel (207) has a cross-shaped groove on the protruding end face near the side body; the center part of the sliding wheel (207) is provided with a groove that matches the left rail (105) and the right rail (104), and rectangular grooves are provided on the left and right sides of the groove respectively.

6. The electric push-to-step according to claim 1, characterized in that: The front pedal surface (201) is fitted with a component that mates with a push rod hole (308) by fasteners, the push rod hole (308) being located at the end of the push rod (306).

7. The electric push-pull step according to claim 6, characterized in that: The gear arm assembly (3) further includes a magnet (305), a magnet base (304), and a connecting mechanism (307). The magnet (305) is installed in the magnet base (304), and the magnet base (304) is installed on the gear arm (303). The gear arm (303) and the push rod (306) are connected and fixed together by the connecting mechanism (307). The gear arm assembly (3) further includes a gasket (301) and a washer (302), which are installed at the center hole of the gear arm (303), and the gasket (301) cooperates with the corresponding part on the top plate (101).

8. The electric push-pull step according to claim 1, characterized in that: The motor assembly (4) further includes a retraction magnetic switch (405) and an extension magnetic switch (406). The retraction magnetic switch (405) and the extension magnetic switch (406) are respectively installed on both sides of the motor base (401) and are used to sense the magnet (305) on the gear arm assembly (3) to control the extension or retraction of the pedal. The motor base (401) has a gear mounting hole (404). Two sets of meshing gear arm assemblies (3) are installed in the gear mounting hole (404), one of which meshes with the gear of the motor assembly (402).

9. The electric push-pull step according to claim 8, characterized in that: The motor assembly (4) further includes a motor bracket (407), a motor torsion shaft (408), a first slide rail (409), and a second slide rail (410). The motor component (402) is mounted on the motor bracket (407). The motor torsion shaft (408) passes through the motor component (402) and cooperates with the first slide rail (409) and the second slide rail (410), so that the motor component (402) can rotate along the slide rail to realize the meshing or separation of the motor gear and the gear arm assembly (3).

10. The electric push-pull step according to claim 9, characterized in that: The motor assembly (4) also includes a manual return handle (411), a reset transmission component (412), a reset linkage shaft (413), a tension spring post one (414), a tension spring post two (418), and a tension spring component (417). The manual return handle (411) is installed on the outside of the base plate (106) and connected to the reset transmission component (412). The reset transmission component (412) is connected to the motor base (401) through the reset linkage shaft (413). One end of the tension spring component (417) is fixed to the tension spring post one (414), and the other end is fixed to the tension spring post two (418). The tension spring post one (414) is located on the relevant components of the reset linkage, and the tension spring post two (418) is located on the motor base (401). When the manual return handle (411) is turned, the motor gear separates from the gear arm assembly (3), and the pedal surface assembly (2) can be manually retracted.

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